Oil Pump Worm/Ring Gear

[Karl squire]

Ok another question, Mostly if there are any tricks tips to this and we are talking bout those little wee springs and Little cylinder things those little tiny so and so's in the oil pump.

Any tricks on doing them, I have done them in the past but honestly I was always drunk when I did it and dont really remember, I do know I glued the tabs to the springs and this made it spring and tab as one unit, I'm doing that now but I thought I would post on here incase someone has a good trick to do this. Thanks Karl

[Karl squire]

Ok another question, Mostly if there are any tricks tips to this and we are talking bout those little wee springs and Little cylinder things those little tiny so and so's in the oil pump.

Any tricks on doing them, I have done them in the past but honestly I was always drunk when I did it and dont really remember, I do know I glued the tabs to the springs and this made it spring and tab as one unit, I'm doing that now but I thought I would post on here incase someone has a good trick to do this. Thanks Karl

I got it done.

[SoCal250]

It's recommended you do it in a plastic bag so they don't go shooting across the shop into oblivion. But the last few times I've done it I hung an old bed sheet around my workbench to make a curtain barrier. I just hold the two pins into the distributor with the tips of my fingers and then gently (and patiently) try to slide the wheel over. Just make sure you've got the wheel oriented in the correct direction or you'll be taking it apart and doing it all over again.

EDIT: while I was writing my post it seems you got it figured out. :thumb:

[svgarage]

I did mine last month. My pump only had one spring. 

[SoCal250]

I did mine last month. My pump only had one spring. 

There are supposed to be two sets of spring & pin, located directly apposite each other on the outside of the distributor and captured by the ID of the worm wheel. Each pin is about 1/2 the size of a piece of long grain rice.

[svgarage]

I did mine last month. My pump only had one spring. 

There are supposed to be two sets of spring & pin, located directly apposite each other on the outside of the distributor and captured by the ID of the worm wheel. Each pin is about 1/2 the size of a piece of long grain rice.

Yes, you described the single pin that I have. I had to search the internet to make sure that I wasn't crazy, since I couldn't find the spring and pin anywhere I was working. I even used a plastic bag. I carefully inspected the wear marks on my parts- only one side was used. I did finally find confirmation that not all pumps have 2 springs.

[m in sc]

last one i did i just used a solid pin that i cut out of stock. .02

[svgarage]

Personally, I'm not worried about it. From what I could tell, the pump had been untouched- that's the way it came and it was working fine. It's all back together just like I found it, albeit new seals, etc., and it's working flawlessly!

[automan]

I heard, later pumps had no springs, ala. m in sc.

cliff

[Karl squire]

It's recommended you do it in a plastic bag so they don't go shooting across the shop into oblivion. But the last few times I've done it I hung an old bed sheet around my workbench to make a curtain barrier. I just hold the two pins into the distributor with the tips of my fingers and then gently (and patiently) try to slide the wheel over. Just make sure you've got the wheel oriented in the correct direction or you'll be taking it apart and doing it all over again.

EDIT: while I was writing my post it seems you got it figured out. :thumb:

Thank you.

[1976RD400C]

Reference for those that have never seen how tiny. 

[Karl squire]

Yes them little buggers, such a pain in the ass to install. Omg.

[Karl squire]

last one i did i just used a solid pin that i cut out of stock. .02

You can do that with out the springs, hmmm good to know.

[Karl squire]

I did mine last month. My pump only had one spring. 

There are supposed to be two sets of spring & pin, located directly apposite each other on the outside of the distributor and captured by the ID of the worm wheel. Each pin is about 1/2 the size of a piece of long grain rice.

Yes, you described the single pin that I have. I had to search the internet to make sure that I wasn't crazy, since I couldn't find the spring and pin anywhere I was working. I even used a plastic bag. I carefully inspected the wear marks on my parts- only one side was used. I did finally find confirmation that not all pumps have 2 springs.

so everything was exactly the same as the 2 spring and pin system but it was only using one?

[m in sc]

on my r5, i rebuilt the pump and used an rz lower part of the body, and yes, it had 1 pin, no spring.

if you don't plan on using the priming wheel there's no need for the clutching mechanism. even yamaha stopped putting them on pumps ;)